【发布时间】：2017-09-24 18:58:16
【问题描述】：
正如我在标题中提到的，我正在创建一个带有视频和两个按钮的弹出窗口 - 现在我想为这些按钮实现功能 - 所以，我创建了一个方法来在从弹出窗口中按下按钮时调用我已经创建了 - 但这总是返回 TypeError: addme() 只需要 1 个参数（给定 2 个） - 如果我将此方法设为静态，则它返回 AttributeError: 'Button' object has no attribute 'on_text'
from __future__ import print_function
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from kivy.uix.popup import Popup
from kivy.properties import StringProperty
from kivy.properties import ObjectProperty
from kivy.uix.progressbar import ProgressBar
from kivy.uix.video import Video
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.widget import WidgetException
from functools import partial
kv = """
<MainPage>:
manager:screen_mgr
do_default_tab: False
textinputtext: waybill.text
ScreenManager:
id: screen_mgr
#transition: FadeTransition
Screen:
manager: screen_mgr
id: intro
orientation: 'horizontal'
name: 'User'
canvas.before:
Rectangle:
pos: self.pos
size: self.size
AnchorLayout:
anchor_x: 'center'
anchor_y: 'center'
BoxLayout:
orientation:'horizontal'
size_hint: .5, .1
canvas:
Color:
rgb: 1, 1, 1
Rectangle:
pos: self.pos
size: self.size
spacing: 20
pos_hint: {'center_x':.8, 'center_y': .8}
AnchorLayout:
anchor_x: 'left'
size_hint_x: .5
TextInput:
id: waybill
width: 20
text: root.textinputtext
multiline: False
height: self.minimum_height
size_hint_y: None
font_size: 30
focus: True
on_text: self.text
on_text_validate:app.on_waybill()
AnchorLayout:
anchor_x: 'right'
size_hint_x: None
Button:
size_hint: None, None
height: 50
width: self.texture_size[0]
padding: 10, 10
text: "Compare"
on_release: root.compareClicked()
AnchorLayout:
anchor_x: 'right'
anchor_y: 'bottom'
BoxLayout:
orientation:'horizontal'
size_hint: .5, .1
canvas:
Color:
rgb: 1, 1, 1
Rectangle:
pos: self.pos
size: self.size
spacing: 50
pos_hint: {'center_x':.8, 'center_y': .8}
AnchorLayout:
anchor_x: 'right'
size_hint_x: None
Button:
id: statebtn
size_hint: None, None
height: 50
width: self.texture_size[0]
padding: 10, 10
text: "State"
AnchorLayout:
anchor_x: 'left'
anchor_y: 'top'
BoxLayout:
orientation:'horizontal'
size_hint: .5, .1
canvas:
Color:
rgb: 1, 1, 1
Rectangle:
pos: self.pos
size: self.size
spacing: 50
pos_hint: {'center_x':.5, 'center_y': .5}
AnchorLayout:
anchor_x: 'right'
size_hint_x: None
Button:
size_hint: None, None
height: 50
width: self.texture_size[0]
padding: 10, 10
on_release:root.current = root.switch_screen()
text: "Admin"
TabbedPanelHeader:
text: intro.name
# store a screen name to link the tab to a screen
screen: intro.name
"""
Builder.load_string(kv)
waybill = TextInput(text="Enter Waybill No.", multiline=False)
class MainPage(TabbedPanel):
screen_mgr = ObjectProperty(None)
textinputtext = StringProperty()
def __init__(self, **kwargs):
super(MainPage, self).__init__(**kwargs)
self.register_event_type('on_text')
self.textinputtext = "Enter Waybill No."
def on_text(self):
return self.textinputtext
def on_text_validate(self):
return self.textinputtext
def on_focus(self, obj, focused):
if not focused:
self.dispatch('on_text_validate')
def compareClicked(self):
self.progress_bar = ProgressBar()
self.progress_bar.value = 1
print (self.on_text())
if self.on_text()!='Enter Waybill No.' :
self.popup_1()
def popup_1(self):
self.box = BoxLayout(orientation='vertical', padding=(10))
popup = Popup(title='Warning: Please Place', title_size=(30),
title_align='center', content=self.box,
size_hint=(None, None), size=(400, 400),
auto_dismiss=False)
self.box.add_widget(Button(text="YES TO COMPARE", on_release=partial(self.addme)))
self.box.add_widget(Button(text="NO TO GO BACK", on_release=popup.dismiss))
popup.bind()
popup.open()
#@staticmethod
def addme(self):
print (self.on_text())
def switch_screen(self):
self.manager.transition = FadeTransition()
self.manager.current = self.manager.previous()
return self.manager.current
def switch_to(self, header):
self.manager.current = header.screen
self.current_tab.state = "normal"
header.state = 'down'
self._current_tab = header
class KartScanApp(App):
def build(self):
return MainPage()
def on_waybill(self):
waybill.bind(text=MainPage.on_text)
return waybill.text
if __name__ == '__main__':
KartScanApp().run()
请帮我解决这个问题，我在这里缺少一些基础知识
【问题讨论】：
-
你能把你的例子减少到尽可能少的代码行吗？理想情况下，除了 kivy 之外，也没有依赖关系。乍一看，
on_text看起来很奇怪，也不需要注册为已经注册的。如果您减少代码，我会更深入地研究。 -
嗨@palimpalim，我已经删除了外部依赖项并删除了一些不必要的方法，你能看看它并建议我有什么问题吗？
-
你不能举一个只有几行并且有同样问题的例子吗？
标签： python python-2.7 kivy kivy-language